The Russian standard plug is similar but has 4-mm pins. Therefore, Russian plugs will fit Schuko outlets, but Schuko plugs will not fit Russian outlets. (If traveling to Russia, use the PowerPlug for Europe, Russia & South America-Item #179). Many former Eastern bloc countries are currently undergoing a process of transition to the (16 A) Schuko standard. Note: The Schuko plug has been phased out of use in Ireland.